| ERROR | materialized view on external table |
| CAUSE | The capability in question is not supported when the materialized view references an external table. |
| ACTION | Re-phrase the query to avoid the use of the external tables. |
| ERROR | materialized view on external table |
| CAUSE | The capability in question is not supported when the materialized view references an external table. |
| ACTION | Re-phrase the query to avoid the use of the external tables. |